
/** 
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */
package org.tompai.common.lock;

/**
* @desc: tompai-common
* @name: Lock.java
* @author: tompai
* @email：liinux@qq.com
* @createTime: 2021年2月7日 下午11:36:49
* @history:
* @version: v1.0
*/

import java.io.FileNotFoundException;
import java.io.IOException;
 
public interface Lock {
 
	/**
	 * 检测是否被锁定
	 * @return true被锁定 ,false空闲
	 * */
	public abstract boolean isLocked() throws FileNotFoundException;
 
	/**
	 * 获取锁资源
	 * @return true成功锁定目标资源 ,false锁定操作失败
	 * */
	public abstract boolean obtain() throws IOException;
 
	/**
	 * 释放锁
	 * */
	public abstract void unlock();
 
}

